| 四半期連結会計期間 | ja | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| 四半期連結会計期間、四半期連結損益及び包括利益計算書(US GAAP) [テキストブロック] | ja | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |
| Quarter period consolidated statement of comprehensive income | en | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Quarter period consolidated statement of comprehensive income (single statement) (US GAAP) [text block] | en | http://www.xbrl.org/2003/role/verboseLabel | http://www.xbrl.org/2003/role/link |